Definition: Given a 'poster' sentence and a corresponding 'response' (often, from Facebook or Reddit)classify the sentiment of the given response into four categories: 1) Positive, 2) Negative, 3) Neutral, and 4) Mixed if it contains both positive and negative.
Input: Poster: Merry Christmas everyone, wishing our peace keepers around the world a safe day. Thank you for your service!  Responser: MERRY CHRISTMAS Big SiS!! LOVE ALWAYS & 4EVER!

Positive